Stadium: Center Court Round: 26 Ground: Clay
| Challenger Braunschweig | 2019/07/09 10:50 | Rudolf Molleker v Johannes Haerteis | 6-3,5-7,1-6 |
| Challenger Braunschweig | 2019/07/07 14:35 | Cedrik-Marcel Stebe v Johannes Haerteis | 6-3,5-7,4-6 |
| Challenger Ludwigshafen | 2019/07/03 09:00 | Johannes Haerteis v Yannick Hanfmann | 3-6,3-6 |
| Challenger Ludwigshafen | 2019/07/02 09:00 | Johannes Haerteis v Julian Lenz | 3-6,7-6,7-6 |
| Challenger Prostejov | 2019/06/03 12:20 | Arthur De Greef v Johannes Haerteis | 4-6,4-6 |
| Challenger Prostejov | 2019/06/02 14:40 | Benjamin Lock v Johannes Haerteis | 6-2,2-6,3-6 |
| Challenger Jerusalem | 2019/05/20 07:00 | Johannes Haerteis v Gonzalo Escobar | 3-6,7-5,2-6 |
| Challenger Rome | 2019/05/07 12:10 | Johannes Haerteis v Stefano Napolitano | 2-6,3-6 |
| Challenger Braunschweig | 2019/07/09 08:00 | Tobias Kamke v Stefano Travaglia | 6-3,7-6 |
| Challenger Braunschweig | 2019/07/08 08:00 | Niklas Guttau v Tobias Kamke | 5-7,4-6 |
| Challenger Ludwigshafen | 2019/07/01 15:00 | Lucas Miedler v Tobias Kamke | 6-4,6-4 |
| Challenger Nottingham | 2019/06/12 16:50 | Antoine Hoang v Tobias Kamke | 5-7,6-4,6-2 |
| Challenger Nottingham | 2019/06/11 13:00 | Liam Broady v Tobias Kamke | 4-6,5-7 |
| Challenger Surbiton | 2019/06/03 17:25 | Ramkumar Ramanathan v Tobias Kamke | 6-3,3-6,6-1 |
| Challenger Murcia | 2019/04/08 11:30 | Federico Gaio v Tobias Kamke | 6-1,6-4 |
| Challenger Lille | 2019/03/22 17:10 | Tobias Kamke v Quentin Halys | 6-7,2-6 |